Electrical connector



Feb. 11, 1941. MEHR 2,231,366

ELECTRI CAL CONNECTOR Filed July 15, 1959 2 Sheets-Sheet 1 all Inventor Feb. 11, 1941. MEHR 2,231,366

ELECTRICAL CONNECTOR Filed July 15, 1939 2 Sheets-Sheet 2 Inventor fled/28% EM? %7' A iiom ys fi atenteri e. 11,, 19%

UNITED STATES PATENT OFFICE 1Claim.

This invention appertains to new and useful improvements in electrical connectors and more particularly to a connector of the swivel type, the same being an improvement on Patent N0. 2,070,211.

The principal object of the present invention is to provide a swivel type electrical connector wherein the parts are assembled in such a manner that the device is substantially fool-proof as regards complete electrical connection between the sections of the connector.

Another important object of the invention is to provide a swvel connector in which supports are constructed in such a manner that conductors can be connected to the conducting elements thereof in a quick and convenient manner.

These and various other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a side elevational view of the connector. v

Figure 2 is a section on the line 22 of Figure 1.

Figure 3 is a cross sectional view on the line 3-3 of Figure 1.

Figure 4 is a longitudinal sectional view. Figure 5-is an outer end elevation of the spring contact carrying plug.

Figure 6 is a side elevational view of the plug shown in Figure 5.

Figure '7 is an inner end elevation of the stationary contact carrying plug.

Figure 8 is a side elevational view of the plug shown in Figure 7.

Figure 9 is an elevational view of the flanged annulus carried by the spring projecting contact carrying plug.

Figure 10 is a sectional view of the annulus shown in Fig. 9.

Figure 11 is a plan view of the annulus of the stationary contact carrying plug.

Figure 12 is a side elevational view, partly in section showing the annulus of Figure 11.

Referring to the drawings wherein like numerals designate like parts, it can be seen that the connector generally referred to by numeral 5 consists of the cylindrical shells 6 and I, each having a rounded end portion through which a conductor receiving opening 3 is formed.

Each of these shells 6 and I has an inwardly disposed and tapered counterbore 9 for accommodating the slightly tapered contact carrying plugs II and I2.

The shells 8 and I are formed with openings l3 through which screws M can be disposed for securing the plugs II and I2 against displacement. The shells 6 and l, and the plugs II and I2 are otsome suitable insulating material.

The plug I2 is slotted in an annular manner to receive the annular conductor ring l5. This ring is flanged outwardly at its outer end as at l6, and is slotted as at ll longitudinally with the side portions of the annulus l5 at the slot formed with threads ill with which the binding screw i9 cooperates. This screw i9 has threads and is disposable into a bore of the plug l2, and feeds along the slot l'l to abut the annulus [5 at the inner end of the slot ll. As can be seen in Figure 7, the inner end of the plug l2 has cut away portions and 2| defining walls 22 and 23 through which openings are formed and through which conductor elements 24-25 are disposable for insertion into openings in the screw l8 and contact member 28. This contact member 26 is disposed in a bore 21 which extends inwardly from the outer end of the plug [2 and with this engages the brush 28 which is spring-pressedly mounted in the hollow barrel 29 which is located axially in the plug II. A spring. 30 in this barrel 29 serves to urge the brush 28 toward and against the contact member 28 when the shells 3 and l are properly related.

In the oil-center shell 3| is the brush 32 which constantly engages and wipes the outside face of the flange IS. A spring 33 in the barrel 3| urges the brush 32 against the flange IS.

The inner end of the plug II is formed to define the cut out portions 34 and 35 through which openings 36 and 31 are formed to permit conductors 38 and 39 to be inserted into openings in the shells 29 and 3|.

The plug II has the annulus 40 circumseribing the same and held in place by pins ll. This annulus 40 has the internal flange 42 which interlaps the flange it of the annulus l5, thus establishing a swivelled connection between the two sections-of the connector.

While the foregoing specification sets forth the invention in speciflc terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spiritv and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

A swivel type connector comprising a pair of shell sections having tapered counterbores therein, tapered plugs removably housed in the sections and seated in said tapered counterbores, one of said plugs being provided with a conductor annulus flanged outwardly at its end 0pposed to the other plug, said conductor annulus having a longitudinal slot cut therein the side edges of which-have screw threads formed thereon, a screw mounted in said first mentioned plug and engaged in said screw threaded slot, the other of said plugs being provided with an annulus flanged inwardly at its end opposed to the first-mentioned plug and embracing the flanged end of the first-mentioned annulus, a

pinpassing through said second-mentioned annulus and engaged in said second-mentioned plug to hold said second-mentioned annulus in position thereon, a stationary contact in the firstmentioned plug, a pair of spring pressed brushes on the other plug for wiping engagement with the contact and flanged annulus of the first mentioned plug, each of said shell sections having openings formed therein, and screws engaged in said tapered plugs and certain of said 10 shell openings to hold said tapered plugs and 'said shell sections assembled.

FREDERICK EARL MEHR. 

